Centrifugal machine.



U. 'F. S. HARTMAN & A. H. LA CASSE. CENTRIFUGAL MACHINE.

APPLICATION FILED MAY 22, 1911.

1,255,007'.l l f Patented Jan.29,1918..

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U. F. S. HARTMAN & A. H. LA CASSE.

' CENTRIFUGAL MACHINE.

APPLICATION FILED MAY 22. |917.

2 SHEETS-SHEET 2.

1,55,007. Patented Jan. 29,1918..

5 at the other end as a means UNO F. S. HARTMAN .AND ALBERT HENRY LA CASSE, 0F CROCKETT, CALIFORNIA.

CENTRIFUGAL MACHINE.

Application led May 22, 1917.

To all whom it may concern:

Be it known that we, U-No F. S. HARTMAN and ALBERT HENRY LA CASSE, citizens of the United States, residing at Crockett, in the county of Contra Costa, State of California, have invented new and useful Improvements in Centrifugal Machines, of which the following is a specification in such clear and full terms as will enable those skilled in the art to construct and use the same.

Our invention relates to improvements in centrifugal machines in which the separated materials, such as sugar, salt and the like, are discharged while the machine is in motion.

This is accomplished by opening suitable segmental openings or ports provided at the outer extremity of the base of a revolving frustumshaped perforated shell connected by arms to a semiispheroidal or any other desired shape of hub; said hub is attached to a tubular shaft which supports and carries the frustum-shaped perforated shell; the said tubular shaft is supported 'at its upper end by a balland* socket bearing, so constructed to permit the shaft and perforated shell to swing, and is provided with a pulley. secured to its upper end for the purpose of revolving the said shaft.

The segmental openings or ports are opened or closed by means of a movable, revolving ring, having suitable projections on its upper side, so constructedthat when in a closed position it closely fits the sides of the segmental openings or orts, and thus prevents any of the materia s being treated to escape through the segmental openings or ports while the machine is being -charged, or during the process of the operation of lseparating the materials.

The movable revolving ring Yis connected to a hub by means of arms, said hub being fitted for and rigidly secured to a revolving,

slidable shaft, having its lower end made' square, fo-r the purpose of driving the movable` ring.

The revolving, slidable shaft can be oper ated by any known suitable device. 1n the drawings we have shown the slidable shaft with a grooved collar attached to its upper end; said grooves are fitted to receive suitable rollers, which travel in the groove of the collar, said rollers being secured to a lever having apivot at one end and a handle for operating. The slidable shaft is provided with a suit- Specication of Letters Patent.

Patented Jan. 29, $918.

Serial No. 170,175.

able groove which slides on a key secured to the inside of the tubular shaft and which means causes the frustum-shaped perforated shell and the movable revolving ring to rcvolvel synchronously.

W'hen charging the machine the jsegment al openings or ports are closed by having the movable revolving ring in its upper, or closed, position.

The movable revolving ring is shown in the drawing held in its position by a toothed quadrant which is pivoted to the operating lever; the toothed spaces on the lower edge of the quadrant engage with a tooth pr'ovided on a rigid frame and serve as a means for locking the movable revolving ring in a closed, open or any intermediate position, as may be desired; said quadrant is readily disengaged from the rigid frame by raising one end, which disengages the tooth spaces from the tooth on the rigid frame.

Referring to the accompanying drawings, Figure l is a vertical section of centrifugal machine, showing the ports closed, and the inner shaft, port ringand operating lever in its upper or closed position; the port ring and operating lever in the open position are shown in dotted lines. 'i

Fig. 2 shows a. plan section takenon line of Fig. 1. v

Fig. shows a plan view of the movable revolving ring with its projections, which fit the port openings.

Fig. t shows a vertical section 'taken on line 5 5 of Fig. 3.

In Fig. 1. A shows the frustum-shaped, perforated shell with perforations, R, said shell secured to the tubular shaft, by means of connecting arms, C, (shown in dotted lines at port opening) to a semi-spheroi- -dal shaped hub, D.

The opening or closing of the segmental openings or ports, G, is caused by means of a movable revolving ring with projections, H, which, through the arms, I, and hub, J are thus secured to the lower end of a slidable,` revolving shaft, K.

The shaft, K, as shown in the drawing, is raised and lowered by means of a lever, L, having rollers, M, in a grooved collar, N, secured to the shaft, K, and a toothed quad rant, P, as means for locking the port ring.

By moving the lever, L, to a downward position, the movable revolving ring, with projections, H, shown in dotted lines in its lower position, is disengaged from the base of the frustum-shaped perforated shell, A.. thereby permitting a free passage of the separatedv solids through the segmental openings or ports. s

` The materials to be separated are delivered to the interior of the shell, A, from the tank, S, through the chute, T, as indicated by arrows. l

What We claim as new and desire -to secure by Letters Patent is:

1. In a centrifugal machine, the combination of a revolving frustum-shaped perforated shell, having't-he outer extremity of its base provided with segmental openings or ports, the frustum-shaped perforated shell connected by .armsteY a hub of any desired shape, said hub secured to a tubular shaft, a tubular shaft supported in a pivoted bearing at its upper end, and provided with a pulley as means for rotating said shaft, a movable revolving ring having suitable projections on its upper side which closely fit into the segmental openings or ports at the base of the revolving frustum-shaped perforated shell, and operated at will, for the purpose of closing or opening the aforesaid openings or ports, said movable revolving ring, having arms connected to a hub, which is secured to a slidable revolving shaft, said slidable revolving shaft provided with a groove, a key on the inside of the tubular shaft engagin in said groove of the slidable revolving sha "t, as a means for` rotating the, slidable shaft and the tubular shaft syn chronously, and a lever or yother suitable means fox` raising or lowering .the tubular shaft, as and for the purpose set forth.

E2.v ln a centrifugal machine, the combination ofa revolving frustum shaped perforated shell having a bottom or base wall provided adjacent its peripheral edge with segmental openings-or ports, a tubular shaft supporting said shell, means for rotating said shaft, a movable ring positioned below the bottom or base wall of said shell and provided with projections for closely fitting the segmental openin s or ports 1n sald shell, a longitudinal mova le solid shaft concen- 'trically disposed within said tubular shaft and to which said ring is fixed, means for rotating said shafts in unison, and means for imparting longitudinal movement to said solid shaft to raise and lower said ring.

3. .ln a c'entrifugalmachine, the combination of a perforated 4conical shell provided adjacent the periphery of its base with one tioned shaft for moving said member rela` tively to the shellfto open and close said port or ports, said Lmeans including a lgrooved collar carried by said shaft, a lever provided with fingers projecting into the groove in said collar and a pivoted rack member coperating with the lever' for engaging a stop at its free end for retaining the lever in its adjusted position.

4., In a centrifugal machine, the combination of a shell having outwardly and downwardly inclined perforated side walls and having a bottom wall raised infits center and inclined toward the bottom edge of said side Wall, said bottom wall provided adjacent the periphery thereof with one or more openings or ports, a tubular shaft mounting said shell, means rotating said shaft, a member mounted beneath the bottom wall of said shell and provided with portions for reception within said openings or ports for controlling the same, a rotatably mounted shaft disposed concentrieally of'said tubular shaft. and mounting said member, means for interlocking said shafts vto rotate in unison, and means for moving said latter shaft longitudinally of 'said tubular shaft to raise and lower said member beneath said shell to open or close said port' or ports.

In testimony whereof We have hereunto set our hands this 17 th day of May, 1917.

UNO F. S'. HARTMAN. ALBERT HENRY LA CASSE.

Witnesses:

L. E. HART, KATE KELLEHER. 

